Geodiversity and Geotourism potential of the Waysa Yacu and Jatun Yacu River Geosite, UNESCO Global Geopark Napo Sumaco

Authors

Cindy Vera, Universidad Regional Amazónica, Ikiam; Oswaldo Guzman, Grupo de Ciencias de la Tierra y Clima. Universidad Regional Amazónica, Ikiam; Corina Campos, Grupo de Ciencias de la Tierra y Clima. Universidad Regional Amazónica, Ikiam; Dayana Vera, Universidad Regional Amazónica, Ikiam; Christian Coral, Universidad Regional Amazónica, Ikiam

Synopsis

Geoparks integrate conservation, science, education, and local culture. In the Ecuadorian Amazon, the UNESCO Global Geopark Napo Sumaco comprises 19 geosites, including Waysa Yacu and the Jatun Yacu River, which stand out for exposing fresh and accessible outcrops of the Abitagua Batholith, with scarce vegetation cover and no evidence of intense weathering—features uncommon in other geosites of similar origin. Therefore, the objective of this study was to characterize their geodiversity through field observations, petrographic analysis, X-ray diffraction, and a quantitative assessment. Three lithologies were identified: a monzogranitic body with phaneritic texture, monzogranitic and andesitic dikes with varied textures, and mafic tonalitic enclaves. The evaluation revealed high tourism potential (305), moderate scientific value (290), moderate educational potential (235), and low degradation risk (95). The site stands out for its tectono-magmatic complexity and strategic value for research, education, and sustainable geotourism.

Published

April 3, 2026

How to Cite

Geodiversity and Geotourism potential of the Waysa Yacu and Jatun Yacu River Geosite, UNESCO Global Geopark Napo Sumaco. (2026). In III International Congress of Biotechnology and Neotropical Ecosystems. Editorial Unión Científica. https://doi.org/10.63804/CIBEN.25.cter.e3